參數(shù)資料
型號: EFM32G840F64
廠商: Energy Micro
文件頁數(shù): 30/69頁
文件大?。?/td> 0K
描述: MCU 32BIT 64KB FLASH 64-QFN
標(biāo)準(zhǔn)包裝: 1,000
系列: Gecko
核心處理器: ARM? Cortex?-M3
芯體尺寸: 32-位
速度: 32MHz
連通性: EBI/EMI,I²C,IrDA,智能卡,SPI,UART/USART
外圍設(shè)備: 欠壓檢測/復(fù)位,DMA,LCD,POR,PWM,WDT
輸入/輸出數(shù): 56
程序存儲器容量: 64KB(64K x 8)
程序存儲器類型: 閃存
RAM 容量: 16K x 8
電壓 - 電源 (Vcc/Vdd): 1.8 V ~ 3.8 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x12b,D/A 2x12b
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 64-VFQFN 裸露焊盤
包裝: 帶卷 (TR)
其它名稱: EFM32G840F64-QFN64
...the world's most energy friendly microcontrollers
2013-06-28 - EFM32G840FXX - d0008_Rev1.60
36
www.energymicro.com
Symbol
Parameter
Condition
Min
Typ
Max
Unit
200 kSamples/s, 12 bit, differ-
ential, VDD reference
79
dBc
200 kSamples/s, 12 bit, differ-
ential, 2xVDD reference
79
dBc
After calibration, single ended
0.3
mV
VADCOFFSET
Offset voltage
After calibration, differential
0.3
mV
-1.92
mV/°C
TGRADADCTH
Thermometer output gradi-
ent
-6.3
ADC
Codes/
°C
DNLADC
Differential non-linearity
(DNL)
±0.7
LSB
INLADC
Integral non-linearity (INL),
End point method
±1.2
LSB
MCADC
No missing codes
11.999
1
12
bits
1On the average every ADC will have one missing code, most likely to appear around 2048 +/- n*512 where n can be a value in
the set {-3, -2, -1, 1, 2, 3}. There will be no missing code around 2048, and in spite of the missing code the ADC will be monotonic
at all times so that a response to a slowly increasing input will always be a slowly increasing output. Around the one code that is
missing, the neighbour codes will look wider in the DNL plot. The spectra will show spurs on the level of -78dBc for a full scale
input for chips that have the missing code issue.
The integral non-linearity (INL) and differential non-linearity parameters are explained in Figure 3.25 (p.
36) and Figure 3.26 (p. 37) , respectively.
Figure 3.25. Integral Non-Linearity (INL)
Ideal t ransfer
curve
Digit al ouput code
Analog Input
INL= |[ (VD-VSS)/VLSBIDEAL] - D| where 0 < D < 2
N - 1
0
1
2
3
4092
4093
4094
4095
VOFFSET
Act ual ADC
t ranfer funct ion
before offset and
gain correct ion
Act ual ADC
t ranfer funct ion
aft er offset and
gain correct ion
INL Error
(End Point INL)
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參數(shù)描述
EFM32G840F64G-E-QFN64 功能描述:64K FLASH, 16K RAM, 4X24 LCD, AE 制造商:silicon labs 系列:Gecko 包裝:托盤 零件狀態(tài):在售 核心處理器:ARM? Cortex?-M3 核心尺寸:32-位 速度:32MHz 連接性:I2C,IrDA,智能卡,SPI,UART/USART 外設(shè):欠壓檢測/復(fù)位,DMA,LCD,POR,PWM,WDT I/O 數(shù):56 程序存儲容量:64KB(64K x 8) 程序存儲器類型:閃存 EEPROM 容量:- RAM 容量:16K x 8 電壓 - 電源(Vcc/Vdd):1.98 V ~ 3.8 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x12b,D/A 2x12b 振蕩器類型:內(nèi)部 工作溫度:-40°C ~ 85°C(TA) 封裝/外殼:64-VFQFN 裸露焊盤 供應(yīng)商器件封裝:64-QFN(9x9) 標(biāo)準(zhǔn)包裝:260
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